An initial investigation replacing fish meal with a commercial fermented soybean meal product in the diets of juvenile rainbow trout
An initial investigation replacing fish meal with a commercial fermented soybean meal product in the diets of juvenile rainbow trout作者机构：Department of Agricultural and Biosystems Engineering Iowa State University Ames USA Department of Wildlife and Fisheries Sciences South Dakota State University Brookings USA Nutraferma Inc. North Sioux City USA South Dakota Department of Game Fish and Parks McNenny State Fish Hatchery Spearfish USA
出 版 物：《Open Journal of Animal Sciences》 (动物科学期刊（英文）)
年 卷 期：2012年第2卷第4期
页 面：234-243页
主 题：Rainbow Trout Fermented Soybean Meal PepSoyGen Oncorhynchus mykiss Diet Alternative Proteins
摘 要：The inclusion of PepSoyGen (PSG), a commercially-available fermented soybean meal product, was evaluated with juvenile rainbow trout, Oncorhynchus mykiss in an initial 70-day feeding trial, with a supplemental trial involving a subset of the experimental diets continuing for an additional 40 d. Six diets containing 0%, 10%, 20%, 30%, 40%, or 50% PSG, with the PSG directly replacing fish meal, were used in the first trial. There were no significant differences in weight gain or feed conversion ratio between the fish meal-based control diet and diets containing up to 30% PSG. However, weight gain was significantly reduced and feed conversion ratio significantly increased with the 40% and 50% PSG diets. No health assessment differences were observed in fish receiving any of the diets, and no evidence of gross gut inflammation was evident. There were no significant differences in weight gain or feed conversion ratio among the four dietary treatments ranging from 0% to 30% PSG which were fed for an additional 40 d after the initial 70-d trial (110 days total). Based on these results, juvenile rainbow trout diets can contain up to 30% PSG without any loss of rearing performance, thereby replacing at least 60% of the fish meal.
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